Problem: stop errors, primarily 7f, after running trouble-free for around 18 months with mostly the same hardware (problem remains with new HW removed).
Type: Error
Source: System Error
Event ID: 1003
Error code 1000007f, parameter1 00000008, parameter2 80042000, parameter3 00000000, parameter4 00000000
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Type: Information
Source: Save Dump
Event ID: 1000
The computer has rebooted from a bugcheck. The bugcheck was: 0x0000007f (0x00000008, 0x80042000, 0x00000000, 0x00000000)
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Type: Information
Source: Save Dump
Event ID: 1001
The computer has rebooted from a bugcheck. The bugcheck was: 0x0000008e (0xc0000005, 0x00000000, 0xf9ef8368, 0x00000000)
Investigation:
-analyzed dump files (dumpchk/pstat/windbg) inconclusive, generally pointing to ntkrnl.exe (or ntkrnlmp.exe)
-temperature is not a problem
-tested RAM and in diff'rent slots
-tried Safe Mode, old OS images and new OS setups (both XP and 2000) and flashed with various BIOS versions and generally disabled all CMOS options thus isolating to hardware
-removed or swapped all hardware except SMPS, CPU, mainboard; power is never lost (always dumps memory to HDD when so configured) so I reckon it's down to CPU or mainboard
Peculiarities:
-failure never occurs in DOS (memtest, ghost, etc), only Windows (or Windows part of OS setup)
-failure can otherwise happen at anytime but can occur several times in a row during boot attempts, each time during Windows loading, then once Windows is loaded, may not occur for some time
-savedump system event is always logged even when boot appears to complete without interuption
I do not have an alternate CPU or mainboard to test. What are the chances that either went bad in such a way that DOS seems unaffected? Is there a DOS utility that could thoroughly test the CPU and report errors? If not, I will have to choose one to swap... CPU is easiest but I wouldn't mind ending up with the latest version of the same mainboard and all the better if that was the fix, while I prefer to stick with the same model CPU.
Any suggestions would be appreciated.
Type: Error
Source: System Error
Event ID: 1003
Error code 1000007f, parameter1 00000008, parameter2 80042000, parameter3 00000000, parameter4 00000000
-
Type: Information
Source: Save Dump
Event ID: 1000
The computer has rebooted from a bugcheck. The bugcheck was: 0x0000007f (0x00000008, 0x80042000, 0x00000000, 0x00000000)
-
Type: Information
Source: Save Dump
Event ID: 1001
The computer has rebooted from a bugcheck. The bugcheck was: 0x0000008e (0xc0000005, 0x00000000, 0xf9ef8368, 0x00000000)
Investigation:
-analyzed dump files (dumpchk/pstat/windbg) inconclusive, generally pointing to ntkrnl.exe (or ntkrnlmp.exe)
-temperature is not a problem
-tested RAM and in diff'rent slots
-tried Safe Mode, old OS images and new OS setups (both XP and 2000) and flashed with various BIOS versions and generally disabled all CMOS options thus isolating to hardware
-removed or swapped all hardware except SMPS, CPU, mainboard; power is never lost (always dumps memory to HDD when so configured) so I reckon it's down to CPU or mainboard
Peculiarities:
-failure never occurs in DOS (memtest, ghost, etc), only Windows (or Windows part of OS setup)
-failure can otherwise happen at anytime but can occur several times in a row during boot attempts, each time during Windows loading, then once Windows is loaded, may not occur for some time
-savedump system event is always logged even when boot appears to complete without interuption
I do not have an alternate CPU or mainboard to test. What are the chances that either went bad in such a way that DOS seems unaffected? Is there a DOS utility that could thoroughly test the CPU and report errors? If not, I will have to choose one to swap... CPU is easiest but I wouldn't mind ending up with the latest version of the same mainboard and all the better if that was the fix, while I prefer to stick with the same model CPU.
Any suggestions would be appreciated.